CVE-2026-24708

{"id": "CVE-2026-24708", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "cve@mitre.org", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 5.8, "exploitabilityScore": 1.8}]}, "published": "2026-02-18T18:24:33.087", "references": [{"url": "https://bugs.launchpad.net/nova/+bug/2137507", "source": "cve@mitre.org"}, {"url": "https://www.openwall.com/lists/oss-security/2026/02/17/7", "source": "cve@mitre.org"}, {"url": "https://lists.debian.org/debian-lts-announce/2026/02/msg00025.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "cve@mitre.org", "description": [{"lang": "en", "value": "CWE-669"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in OpenStack Nova before 30.2.2, 31 before 31.2.1, and 32 before 32.1.1. By writing a malicious QCOW header to a root or ephemeral disk and then triggering a resize, a user may convince Nova's Flat image backend to call qemu-img without a format restriction, resulting in an unsafe image resize operation that could destroy data on the host system. Only compute nodes using the Flat image backend (usually configured with use_cow_images=False) are affected."}, {"lang": "es", "value": "Se descubri\u00f3 un problema en OpenStack Nova antes de la versi\u00f3n 30.2.2, 31 antes de la 31.2.1, y 32 antes de la 32.1.1. Al escribir una cabecera QCOW maliciosa en un disco ra\u00edz o ef\u00edmero y luego activar un redimensionamiento, un usuario puede inducir al backend de imagen Flat de Nova a llamar a qemu-img sin una restricci\u00f3n de formato, lo que resulta en una operaci\u00f3n de redimensionamiento de imagen insegura que podr\u00eda destruir datos en el sistema anfitri\u00f3n. Solo los nodos de c\u00f3mputo que utilizan el backend de imagen Flat (normalmente configurados con use_cow_images=False) se ven afectados."}], "lastModified": "2026-02-21T05:17:17.817", "sourceIdentifier": "cve@mitre.org"}